Ventilation system



Oct. 27, 1925. 1,559,057

A. W. STEWART VENTILATI ON SYSTEM Filed May 25; 1923 2 Sheets-Sheet 1 "p I 2, a I A l I Oct. 27, 1925.

A. W. STEWART VENTILATION SYSTEM Filed May 25, 1923 2 Sheets-Sheet 2 Patented Oct. 27, 1925.

UNITED STATES PATENT orF cs.

' ALEXANDER WILLIAM STEWART, 0F GLASGOW, SCOTLAND.

-vnn'nnarron SYSTEM.

Application filed May 25, 1923. Serial 1T0. 641,405.

To all whom it may concern:

Be it known that I,

ALEXANDER is a specification.

This invention relatesto a tem in which air at high through trunking and has f ventilation sysvelocity is delivered or an object to render practicable reduction in the dimensions of the distribution trunking ordinaril'y required.

This object is realized by the employment as the outlet of'a valve in the form of a hollow ball having a through 0 justable in .a ball socket,

transmission of ity than is practicable pening and adpermitting the airat a much higher velocwith the employment of louvres of the ordinary hit and miss, or

slide types on account of the liability for noises to beset up at the edges of the open- The ball is formed as a hollow spherical shell having opposite poles cutaway to afford an inlet at one pole and an'outlet at the other. formed or fitted into any of air duct, air box, or the like.

The ball is supported 1n a socket the walls of an The ball may be adjusted to any position within the range of a hemisphere as by the outlet pole.

the ball may be fitted to connect outlet poles.

means A tube extending through of .a handle at the inlet and The described arrangement makes it possible to project a stream of air from the air duct in any direction covering a spherical radius of about 180.

One or more balls may at the delivery\end or other leading to a shi )s cabin or vtl In the' accompanying illustrates diagrammatically stallation for the ventilation or the like. Fig. 2. is an end befitted to a cap point of a duct ie like.

' drawings Fig. 1

*part of an inof ships cabins elevation of the \VILLIAM valve. Figs. 3 and 4 are elevations at right angles to Fig. 2 showing the ball in two different positions. Fig. 5 is a section through the valve in the position shown in Fig. 2. Referring to the drawings, 1 denotes a duct serving a numberof ships cabins and fitted within the cabins with air boxes 2 each fitted with a number of valves, valves. Eachsuch valve comprises a formed as a hollow spherical shell with opposite poles cut tube 4. The ball is supported in a socket 5 having an extension valve seat 8 and may be adjusted to any position within the range of a hemisphere by means of a handle (3 carried by a spider. 7 at the outlet end of the tube 4. The extension valveseat 8 .is provided on the socket 5 so that the ball valve can completely shut off the air flow, as shown in Fig. 4.

What I claim is 1. In a ventilation system, the combination of an air duct, an air box fitted to said duct and an outlet valve for said air-box discharging directly into the atmosphere, said valve comprising a valve proper in the form of a hollow spherical shell having cut awav portions adjustable in said socket, said shell being 'adjustable tojany position substantially within the range of a hemisphere without affecting the discharge through the valve.

2. In a ventilation system, tion of an air duct, an air box duct and an outlet valve discharging directly into the atmosphere, said valve comprising a ball socket and a valve proper in the form of a hollow spher: cal shell havin cut away portions joined by the combina fitted to said say two ball 3 away and connected by a for said air-box ball socket and a I a tube and a justable in said socket, said shell being adjustable to any position sub- ALEXANDER WILLIAM STEWART. 

